Other Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred tax assets	$ 57,891	$ 51,077
Identifiable intangible assets, net	29,267	28,243
Assets held for sale	27,575	21,147
Service fee receivables	26,144	15,156
Prepaid expenses	19,966	18,036
Other financial receivables	19,212	18,732
Derivative instruments	4,821	1,122
Security deposits	3,132	2,781
Receivable from seller	756	5,388
Other	66,229	53,765
Total	$ 254,993	$ 215,447